CN203421257U - High-temperature high-pressure check valve - Google Patents
High-temperature high-pressure check valve Download PDFInfo
- Publication number
- CN203421257U CN203421257U CN201320529481.6U CN201320529481U CN203421257U CN 203421257 U CN203421257 U CN 203421257U CN 201320529481 U CN201320529481 U CN 201320529481U CN 203421257 U CN203421257 U CN 203421257U
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- ring
- sealing
- seal
- valve
- seat
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- Expired - Fee Related
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Abstract
The utility model relates to a high-temperature high-pressure check valve which comprises a valve body. A communication cavity and a sealing cavity are formed in the valve body, a valve seat and a valve clack matched with the valve seat are arranged in the communication cavity, an opening is formed in the upper portion of the sealing cavity, and a valve cover and a valve cover component used for sealing the opening are arranged on the sealing cavity. The valve cover component comprises a sealing seat which is arranged on the valve cover in a suspended mode and located in the sealing cavity in a sealed mode. The peripheral face of one end, facing the valve cover, of the sealing seat is provided with a sealing ring, and an open ring is arranged on the inner peripheral face of the sealing cavity and located at the other end, opposite to the sealing seat, of the sealing ring. The end face, facing the valve cover, of the sealing seat is provided with a locating backing ring, and the outer peripheral face of the locating backing ring is attached to the inner peripheral face of the open ring. According to the high-temperature high-pressure check valve, the open ring can not be separated from a mounting groove in the inner peripheral face of the sealing cavity.
Description
Technical field
The utility model relates to a kind of safety check, is specifically related to a kind of High Temperature High Pressure safety check.
Background technique
Safety check claims again check valve, one-way valve, one-way valve or check valve, and its effect is to guarantee medium directional flow in pipeline and the function of unlikely refluence, and High Temperature High Pressure safety check is a kind of safety check that is applied to high-temperature high-pressure medium.
High Temperature High Pressure safety check comprises valve body, in valve body, be provided with for the flowing lumen of circulation medium and with the Seal cage of the vertical UNICOM of flowing lumen, in flowing lumen, be provided with the valve seat of can one direction opening and the flap coordinating with valve seat, Seal cage top is provided with opening and for sealing the valve gap of opening, because its mobile medium is high-temperature high-pressure medium, so can not seal valve body by valve gap merely, toward contact, need adopt bonnet assemblies to seal cylindrical cavity, bonnet assemblies comprises and is arranged at the valve gap boom stick of slippage up and down, the end that boom stick is positioned at Seal cage is fixedly installed the sealing seat that transverse sealing is arranged at Seal cage, the side face of sealing seat towards one end of valve gap is provided with the seal ring that fitting surface is inclined-plane and the installation cavity of seal ring is installed, the other end that Seal cage inner peripheral surface is positioned at the relative sealing seat of seal ring is provided with the pendant collet that limits the seal ring displacement upper limit, when high-temperature high-pressure medium inflow valve body impacts sealing seat, sealing seat moves and passes through inclined-plane crush seal ring and realize the sealing to Seal cage to valve gap, and the sealing seat larger seal ring compressional deformation that is under pressure causes more greatly sealing effect better, yet in actual use, for limiting the pendant collet of the seal ring displacement upper limit, be stuck in the mounting groove of Seal cage inner peripheral surface, along with long-term use deformation causes pendant collet to atrophy inside Seal cage, cause when sealing seat is placed in lowest order not being under pressure impact, pendant collet likely departs from and falls into Seal cage and lose to seal ring the restriction to top offset from mounting groove, cause whole bonnet assemblies ineffective, greatly affected working life.
Summary of the invention
The deficiency existing for prior art, the High Temperature High Pressure safety check that provides a kind of pendant collet can not depart from from the mounting groove of Seal cage inner peripheral surface is provided the purpose of this utility model.
For achieving the above object, the utility model provides following technological scheme: comprise valve body, in described valve body, be provided with flowing lumen and Seal cage, the flap that is provided with valve seat in described flowing lumen and coordinates with valve seat, described Seal cage top is provided with opening and for sealing valve gap and the bonnet assemblies of opening, described bonnet assemblies comprises hanging and is arranged at the sealing seat that valve gap and sealing are arranged at Seal cage, described sealing seat is provided with seal ring towards the side face of valve gap one end, the other end that described Seal cage inner peripheral surface is positioned at the relative sealing seat of seal ring is provided with pendant collet, it is characterized in that: described sealing seat is provided with location gasket ring on the end face of valve gap, the described outer circumferential face of location gasket ring and the inner peripheral surface of pendant collet fit.
By adopting technique scheme, can be to atrophy in Seal cage even if set up the deformation of locating pad environmental protection card pendant collet yet, avoid falling into Seal cage and lose to seal ring the restriction to top offset, guarantee the sealing effect in High Temperature High Pressure check valve seal chamber, greatly increase the service life.
The utility model is further set to: on described valve gap, be provided with for fixing seal seat and the boom stick of slippage up and down, described boom stick be positioned on the side face of Seal cage, be provided with for the fixing screw thread of sealing seat, the inner peripheral surface of described location gasket ring is provided with the projection of avoiding locating gasket ring inner peripheral surface and screw thread laminating towards boom stick.
By adopting technique scheme, projection is set and prevents from locating gasket ring and contact by screw thread and drive and can not be positioned over stably above sealing seat with the screw thread large size of boom stick side face, the position stability of gasket ring to pendant collet located in assurance.
The utility model is further set to: on described Seal cage inner peripheral surface, be provided with the mounting groove of establishing pendant collet for blocking, described valve body outer circumferential face is provided with mounting groove and is connected for ejecting the through hole of pendant collet.
By adopting technique scheme, when dismounting High Temperature High Pressure safety check, from through hole, pendant collet is ejected, avoid pendant collet because location gasket ring coordinates tension to take off.
The utility model is further set to: described seal ring is that cross section is right-angled trapezium, the hypotenuse of described right-angled trapezium is towards sealing seat setting, in the middle of described seal ring and pendant collet, be provided with packing ring, described packing ring is provided with the corner block for locating sealing ring towards the end face of seal ring.
By adopting technique scheme, the seal ring of right-angled trapezium and packing ring laminating also firmly guarantee when the work that by the corner block of packing ring seal ring can lateral shift surely, and assurance sealing seat coordinates with seal ring.
The utility model is further set to: the material of described location gasket ring is 2Cr13.
By adopting technique scheme, 2Cr13 stainless steel hardness is good, and long service life is well suited for locating the use of gasket ring, and draws materials conveniently, with low cost.
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model embodiment;
Fig. 2 is the enlarged view of A in Fig. 1.
Embodiment
As shown in Fig. 1-Fig. 2, the utility model discloses a kind of High Temperature High Pressure safety check, comprise valve body 1, in valve body 1, be provided with for the flowing lumen 2 of circulation medium and with the Seal cage 3 of the vertical UNICOM of flowing lumen, the flap 21 that is provided with valve seat 22 in flowing lumen 2 and coordinates with valve seat 22, Seal cage 3 tops are provided with opening 31 and for sealing valve gap 32 and the bonnet assemblies of opening 31, bonnet assemblies comprises that suspension is arranged at valve gap 32 and seals the sealing seat 33 that is arranged at Seal cage 3, the side face of sealing seat 33 towards valve gap one end is provided with seal ring 35, the other end that Seal cage 3 inner peripheral surfaces are positioned at seal ring 331 relative sealing seats 33 is provided with pendant collet 34, sealing seat 33 is provided with location gasket ring 36 on the end face of valve gap 32, the location outer circumferential face of gasket ring 36 and the inner peripheral surface of pendant collet 34 fit, even if set up location gasket ring 36, guarantee that pendant collet 34 deformation can be to the interior atrophy of Seal cage 3 yet, avoid falling into Seal cage 3 and lose to seal ring 35 restriction to top offset, guarantee the sealing effect in High Temperature High Pressure check valve seal chamber 3, greatly increase the service life.
On valve gap 32, be provided with the boom stick 37 for fixing seal seat 33 and slippage up and down, boom stick 37 be positioned on the side face of Seal cage 3, be provided with for the fixing screw thread 371 of sealing seat 33, the inner peripheral surface of location gasket ring 36 is provided with the projection 361 of avoiding locating gasket ring 37 inner peripheral surfaces and screw thread 371 laminatings towards boom stick 37, projection 361 is set and prevents from locating gasket ring 36 and contact by screw thread 371 and drive and can not be positioned over stably above sealing seat 33 with screw thread 371 large size of boom stick 37 side faces, guarantee the position stability of 37 pairs of pendant collets 34 of location gasket ring.
On Seal cage 3 inner peripheral surfaces, be provided with the mounting groove 38 of establishing pendant collet 34 for blocking, valve body 1 outer circumferential face is provided with mounting groove 38 and is connected for ejecting the through hole 11 of pendant collet, when dismounting High Temperature High Pressure safety check, from through hole 11, pendant collet 34 is ejected, avoid pendant collet 34 because location gasket ring 36 coordinates tension to take off.
The material of location gasket ring 36 is 2Cr13, and 2Cr13 stainless steel hardness is good, and long service life is well suited for locating the use of gasket ring 36, and draws materials conveniently, with low cost.
Claims (8)
1. a High Temperature High Pressure safety check, comprise valve body, in described valve body, be provided with flowing lumen and Seal cage, the flap that is provided with valve seat in described flowing lumen and coordinates with valve seat, described Seal cage top is provided with opening and for sealing valve gap and the bonnet assemblies of opening, described bonnet assemblies comprises hanging and is arranged at the sealing seat that valve gap and sealing are arranged at Seal cage, described sealing seat is provided with seal ring towards the side face of valve gap one end, the other end that described Seal cage inner peripheral surface is positioned at the relative sealing seat of seal ring is provided with pendant collet, it is characterized in that: described sealing seat is provided with location gasket ring on the end face of valve gap, the described outer circumferential face of location gasket ring and the inner peripheral surface of pendant collet fit.
2. High Temperature High Pressure safety check according to claim 1, it is characterized in that: on described valve gap, be provided with for fixing seal seat and the boom stick of slippage up and down, described boom stick be positioned on the side face of Seal cage, be provided with for the fixing screw thread of sealing seat, the inner peripheral surface of described location gasket ring is provided with the projection of avoiding locating gasket ring inner peripheral surface and screw thread laminating towards boom stick.
3. High Temperature High Pressure safety check according to claim 1 and 2, is characterized in that: on described Seal cage inner peripheral surface, be provided with the mounting groove of establishing pendant collet for blocking, described valve body outer circumferential face is provided with mounting groove and is connected for ejecting the through hole of pendant collet.
4. High Temperature High Pressure safety check according to claim 1 and 2, it is characterized in that: described seal ring is that cross section is right-angled trapezium, the hypotenuse of described right-angled trapezium is towards sealing seat setting, in the middle of described seal ring and pendant collet, be provided with packing ring, described packing ring is provided with the corner block for locating sealing ring towards the end face of seal ring.
5. High Temperature High Pressure safety check according to claim 3, it is characterized in that: described seal ring is that cross section is right-angled trapezium, the hypotenuse of described right-angled trapezium is towards sealing seat setting, in the middle of described seal ring and pendant collet, be provided with packing ring, described packing ring is provided with the corner block for locating sealing ring towards the end face of seal ring.
6. High Temperature High Pressure safety check according to claim 1 and 2, is characterized in that: the material of described location gasket ring is 2Cr13.
7. High Temperature High Pressure safety check according to claim 3, is characterized in that: the material of described location gasket ring is 2Cr13.
8. High Temperature High Pressure safety check according to claim 4, is characterized in that: the material of described location gasket ring is 2Cr13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529481.6U CN203421257U (en) | 2013-08-28 | 2013-08-28 | High-temperature high-pressure check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320529481.6U CN203421257U (en) | 2013-08-28 | 2013-08-28 | High-temperature high-pressure check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203421257U true CN203421257U (en) | 2014-02-05 |
Family
ID=50020356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320529481.6U Expired - Fee Related CN203421257U (en) | 2013-08-28 | 2013-08-28 | High-temperature high-pressure check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203421257U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605856A (en) * | 2021-08-11 | 2021-11-05 | 江苏宏泰石化机械有限公司 | Fracturing gas production wellhead valve with self-sealing structure |
-
2013
- 2013-08-28 CN CN201320529481.6U patent/CN203421257U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113605856A (en) * | 2021-08-11 | 2021-11-05 | 江苏宏泰石化机械有限公司 | Fracturing gas production wellhead valve with self-sealing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 Termination date: 20210828 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |